t3404: fix "fake-editor"

diff --git a/diff.c b/diff.c
index cd6b0c4e0bb5efad828fa29e92e8729418401080..a5fc56bdad5d96b2a4e0e1140206b8367a257867 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -1695,7 +1695,7 @@ static void prep_temp_blob(struct diff_tempfile *temp,
 
        fd = git_mkstemp(temp->tmp_path, PATH_MAX, ".diff_XXXXXX");
        if (fd < 0)
-               die("unable to create temp-file");
+               die("unable to create temp-file: %s", strerror(errno));
        if (write_in_full(fd, blob, size) != size)
                die("unable to write temp-file");
        close(fd);